diff options
Diffstat (limited to 'src/lem_interp/interp.lem')
| -rw-r--r-- | src/lem_interp/interp.lem | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/lem_interp/interp.lem b/src/lem_interp/interp.lem index fe4568fb..75e6443e 100644 --- a/src/lem_interp/interp.lem +++ b/src/lem_interp/interp.lem @@ -1095,6 +1095,34 @@ and create_write_message_or_update t_level value l_env l_mem is_top_level ((LEXP end) | (Action a s,lm, le) -> ((Action a s,lm,le), Just (fun (E_aux (E_tuple es) _) -> (LEXP_aux (LEXP_memory id es) (l,annot)))) | e -> (e,Nothing) end + | LEXP_cast typc id -> + match tag with + | Tag_empty -> + match in_env l_env id with + | Just (V_boxref n t) -> + if is_top_level + then ((Value (V_lit (L_aux L_unit l)), update_mem l_mem n value, l_env),Nothing) + else ((Value (in_mem l_mem n), l_mem, l_env),Just (fun e -> LEXP_aux (LEXP_cast typc id) (l,annot))) + | Just v -> + if is_top_level then ((Error l "Writes must be to reg values",l_mem,l_env),Nothing) + else ((Value v,l_mem,l_env),Just (fun e -> LEXP_aux(LEXP_cast typc id) (l,annot))) + | Nothing -> + if is_top_level + then begin + let (Mem c m) = l_mem in + let l_mem = (Mem (c+1) m) in + ((Value (V_lit (L_aux L_unit l)), update_mem l_mem c value, (id,(V_boxref c typ))::l_env),Nothing) + end + else ((Error l (String.stringAppend "Undefined id " (get_id id)),l_mem,l_env),Nothing) + end + | Tag_extern _ -> + let regf = Reg id typ in + let request = (Action (Write_reg regf Nothing value) + (Frame (Id_aux (Id "0") l) + (E_aux (E_id (Id_aux (Id "0") l)) (l,intern_annot annot)) l_env l_mem Top),l_mem,l_env) in + if is_top_level then (request,Nothing) else (request,Just (fun e -> LEXP_aux (LEXP_cast typc id) (l,annot))) + | _ -> ((Error l (String.stringAppend "Internal error: writing to id with tag other than extern or empty " (get_id id)),l_mem,l_env),Nothing) + end | LEXP_vector lexp exp -> match (interp_main t_level l_env l_mem exp) with | (Value i,lm,le) -> |